### ATtiny 416/816/1616/3216 ![x16 Pin Mapping](ATtiny_x16.gif "Arduino Pin Mapping for ATtiny x16") Specifications | ATtiny416 | ATtiny816 | ATtiny1616 | ATtiny3216 ------------ | ------------- | ------------- | ------------- | ------------- Flash (program memory) | 4096 bytes| 8192 bytes | 16384 bytes | 32768 bytes RAM | 256 bytes | 512 bytes | 2048 bytes | 2048 bytes EEPROM | 128 bytes | 128 bytes | 256 bytes | 256 bytes Bootloader | Optiboot (optional, not recommended) | Optiboot (optional)| Optiboot (optional) | Optiboot (optional) GPIO Pins | 18 (17 usable) | 18 (17 usable) | 18 (17 usable) | 18 (17 usable) ADC Channels | 12 (11 usable) | 12 (11 usable) | 12 (11 usable) | 12 (11 usable) DAC | Yes | Yes | Yes | Yes PWM Channels | 8 | 8 | 8 | 8 Timer type B | 1 | 1 | 2 | 2 Timer Type D | Yes | Yes | Yes | Yes Interfaces | UART, SPI, I2C | UART, SPI, I2C | UART, SPI, I2C | UART, SPI, I2C Clock options | Internal 20/16/10/8/5/4/1 MHz | Internal 20/16/10/8/5/4/1 MHz | Internal 20/16/10/8/5/4/1 MHz | Internal 20/16/10/8/5/4/1 MHz ### Buy official megaTinyCore breakouts and support continued development! [ATtiny3216 assembled](https://www.tindie.com/products/17597/) [ATtiny3216/1616/816/416/1606/806/406 bare board](https://www.tindie.com/products/17614/) ### Datasheets and Errata See [Datasheet Listing](Datasheets.md)